Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9380927 | Mountable footwear cleaner | — | 2016-07-05 |
| 8334646 | LED wavelength-coverting plate with microlenses in multiple layers | Alan Piquette, John F. Kelso, Nathan Michael Zink, Yi Zheng, Madis Raukus | 2012-12-18 |
| 6499171 | Footwear cleaning apparatus | — | 2002-12-31 |
| 5771528 | Self-cleaning entry carpet assembly with improved access and shipping features | — | 1998-06-30 |
| 4951345 | Self-cleaning entry carpet assembly | — | 1990-08-28 |